Rearchitected internal git system to be distributed and fully redundant using gitosis

Designed and implemented a "bastion" server (SSH and squid) to tightly control access to production environment based on LDAP role group membership

Created system to allow external servers (in EC2 and small remote POPs) to be managed securely by internal infrastructure (Puppet, Splunk, OpenTSDB, nagios, etc.)

Senior System Administrator, Announce Media (May 2010 to March 2011)

Primary responsibility was general system administration with a focus on MySQL Database administration

Implemented Puppet to manage all of our existing servers and automate the build/configuration of new servers. All server types were fully defined in Puppet, so that a newly built server could be up and ready for production within 30 minutes of OS installation